Joerg Dennis Krueger, Founder of JDKRUEGER&CO

More revenue from your shop.
Or you pay nothing.

The Conversion Operating System for e-commerce: 20 years of CRO experience, distilled into software, processes and AI. We test, measure and scale. Paid on a performance basis: 10% of provable uplift. If the uplift does not come, you pay nothing.

Book a Call How it works

4.4/5 on Trustpilot · 53 verified reviews ↗

210M+ €
Generated revenue
+34%
Avg. conversion uplift
3–5 days
To first live test
0 €
Setup cost
Gold Stevie Award
Gold Stevie AwardMultiple Winner
Top Expert 2026 Erfolg Magazin
Top Expert 2026Erfolg Magazin
German Web Awards Winner 2021 + 2022
German Web AwardsWinner 2021 + 2022

The average shop leaves 30% of revenue on the table.

70%
of shopping carts are abandoned
60%
of traffic comes from mobile, at half the conversion rate
80%
of revenue comes from 20% of customers who are never reactivated

Sources: Baymard Institute (2026), Statista Mobile Commerce Report

Only results count.

0 €
Setup cost
0 €
Monthly fees
10%
Of provable uplift
6 mo.
Then the optimisation is yours
Example calculation
Shop with 400,000 EUR revenue/month
→ 15% uplift = +60,000 EUR/month
→ Your additional revenue: +54,000 EUR/month
→ Our share: 6,000 EUR/month

The fair 6-month rule: Every successful A/B-test is billed for 6 months. After that, the optimisation is yours, forever. We start new tests. You scale your revenue.

Secure this potential for your shop
Success Stories

What we measured

CRO Case Study Geschenke24

Geschenke24

REVENUE QUADRUPLED

From 250k to 1M € monthly revenue through radical checkout testing.

CRO Case Study Rockstar Nails

Rockstar Nails

+20% REVENUE IN 30 DAYS

Through targeted checkout optimisation and removal of purchase barriers.

CRO Case Study Gutta

Gutta Shop

+30% MORE CONVERSIONS

Sustainable growth through systematic optimisation.

CRO Case Study Kettner

Kettner Precious Metals

+25% REVENUE

Trust optimisation for high-value products.

Joerg Dennis Krueger as Speaker
The person behind the system

Joerg Dennis Krueger

01
EntrepreneurIn e-commerce since 2006. Founder of JDKRUEGER&CO. 210M+ EUR additional revenue for clients.
02
Author & SpeakerThe Conversion Hacker®. 1,000+ articles. Pioneer work "Conversion-Boosting with Website Testing". OMR, DMEXCO, OMKB.
03
System ArchitectThe knowledge from 20 years and thousands of A/B-tests is built into the 9 Engines, not a single brain.
04
210M+ EURProvable. Measured. Real.
Meet Joerg Dennis Krueger The person: joergdenniskrueger.com ↗

Three ways to more revenue from your shop.

Learn it yourself.

Conversion Hacker Academy: 101 modules, 43 hours, free, with certificate.

Learn for free ↗

Steer it together.

Jörg Dennis Krüger as your external Chief Conversion Officer, embedded in your team by the day. Only 3 slots.

Request a slot ↗
Recommended

Have it done.

The Conversion Operating System: 0 € setup, 10 % of proven uplift. First test in 3–5 days.

Book a Call

Discuss more revenue in 15 minutes.

No obligation. We tell you if your shop fits us.

Book a Call

* Cumulative additional revenue of all client projects since 2012, measured via direct A/B-test comparison (Control vs. Variant) when implementing the JDKRUEGER&CO methodology. Individual results may vary depending on shop setup, industry and season.